Choosing the Evaporative Cooler Tips

First, you have to take into account the size of the area you will be cooling.  Your choice of  an evaporative cooler should depend on the size of your space because some coolers can be bulky.  If you have ample space, then that is good.  You can opt for any type of evaporative cooling system.  But if can’t spare much space for it, you can opt for a small direct evaporative cooler.  You can also go for a misting fan, which can be mounted on the wall, saving you more space.

Another thing to consider when getting an evaporative cooler is what type of area it will be serving.  You have to take note that not all evaporative coolers can apply to certain areas.  For example, an office full of paper documents and computers cannot go with a misting fan because the big vapours will make it prone to damage.  In this sense, it is better to use a two-stage evaporative swamp cooler as it contributes less to area humidity.

Taking these two things into consideration will greatly improve the effectiveness of your evaporative cooling system.

In essence, all evaporative coolers work the same way.  They all employ cooled water vapour for space cooling.  Unlike typical air conditioning systems which use chemical-based refrigerants to cool the air, evaporative systems work as naturally as possible.  The cooled water vapour is processed to moderate the temperature in you living or working space.  Evaporative systems are very energy efficient and, at the same time, safe for the environment.

Types of Evaporative Coolers

There are two types of evaporative coolers.  The first type is called the direct cooler.  Direct here means that the ventilation comes into direct contact with the water.  This is done by air/wind pressuring moisture off of a water pad, or through fan misting.  The second type of evaporative cooler is called the indirect cooler.  Here, a heat exchanger is used for cooling transfer to the ventilation.  This makes it unnecessary for the ventilation to be in direct contact with the water.

Coolers like these are very common in the South.  But depending on your climate, you might prefer one type of cooler over the other.  The direct cooler contributes greatly to humidity.  This is great for low humidity areas like highly-elevated locations or areas surrounded by desert.  This is not so good for already-humid areas like hot coastal places.  In this sense, an indirect cooler will be better.  Whatever your space is like, there’s an evaporative cooler perfect for you.

The idea behind an evaporative cooler is quite simple: air that passes by the water causes the latter to evaporate. It is the same principle that applies to the human body. The temperature of the body decreases and the body feels cooler after the evaporation of sweat. Also called desert or swamp cooler in America, an evaporative air cooler is basically a big fan with damp filter pads in front of it. Warm air from outside is drawn to the fan through the pads, which filter out impurities from the passing air. The air becomes cooler and its temperature drops by about 20 degrees because the water has evaporated within the filter pads. Then the fan blows the cooler air throughout the space where the evaporative cooler is located. The air that comes out of the evaporative air cooler has high moisture content.

Evaporative Coolers – Working Diagram

Evaporative coolers are preferred over air conditioners because they result in more energy savings. This is because evaporative coolers consume less energy than air conditioners, which need at least four times more energy. Also, evaporative coolers use the natural evaporation process to cool air as opposed to the high amount of electricity needed to make an air conditioning unit run.

Aside from energy consumption, evaporative coolers and air conditioners also differ in terms of how they are used. For optimum air cooling, air conditioning requires a closed space, so doors and windows are usually closed while an air conditioner is on. In contrast, evaporative cooling needs ventilation so that the cooled air can escape. So, to make the air in a room cooler, the windows must be left open when using evaporative coolers.

What is evaporative cooling?

Evaporative Coolers are cooling system that employs the exact same concept of the wet towel habit.  Cooling with an evaporative cooler is chemical-free and 100% natural, using only two of nature’s oldest agents: Water and wind.  Like a soaked towel, an evaporative cooler uses water pads, soaked in cool water.  These in turn are air blown to project cool water vapor into the surrounding area.  This improves the temperature of an area greatly, making it more comfortable to settle into.  There are evaporative cooling systems that don’t require direct water and ventilation contact.  These are called indirect coolers.  These use heat exchangers which pass on the cold to the blowing air indirectly.

This type of cooling system has so many advantages.  One advantage is that it is affordable.  Since its system is not as complicated as traditional air conditioning systems, these are relatively cheaper.  Also, these systems work very efficiently are as effective as traditional air conditioning systems.  Third, these systems are very energy efficient.  They consume more or less a quarter of what a regular air con system consumes in energy.  Lastly, it is environment-friendly.  These do not use any refrigerants in the water cooling process, making them safe for the Ozone.  Evaporative cooling is a great choice for space cooling, whether it is for your home or your work place or for whatever purpose.

Evaporative Coolers and CFC’s

One of the biggest contributors to global warming is refrigerants.  These are more commonly known as chlorofluorcarbons, or CFCs, and hydrochlorofluorocarbons, or HCFCs.  Over the years, these compounds have destroyed the Ozone layer, thus creating a Greenhouse effect.  This is the cause for the skewing of world climates, causing a lot of crises across the globe.  Air conditioning units are one of the biggest contributors of refrigerants.

If you want to keep your space cool, you best option to help the earth is to opt for evaporative coolers.  Evaporative coolers use no harmful chemical compounds whatsoever in cooling your space.  It only uses 100% natural components: Wind and water.  These not only help you cool off, these also improve the quality of indoor air as fresh air from outside is made to circulate inside your living or working space.  Moreover, evaporative coolers are very energy efficient, which is another plus factor for the environment; the less energy consumed, the less energy waste by-products are produced.

In everything we do, we should think about out earth.  It is out only home and we should protect it.  Since it’s already damaged, all we can do now is to prevent further harm to it.  Be wise even when selecting your appliances.  Choosing evaporative cooling over a traditional air conditioning system is a choice for both yourself and Mother Earth.

The mechanics of evaporative coolers are simple.  Basically, they use to main components in the cooling process: One is water; and the second is ventilation.  The first component is water.  Water is the main and most important part of this system.  Water is what makes the system cool.  In an evaporative cooler, water is chilled to about 5 degrees Celsius to 8 degrees Celsius.  As the name suggests, the water is evaporated and turned into fine vapours.  These, in turn, wait for distribution.  Here is where the ventilation comes in.  This usually takes the form of a blower or a fan.  Basically, it’s job is to distribute the vapours/cool air.  It doesn’t necessarily have to come into direct contact with the water, but it can too.

Evaporative Cooler Affordability

The reason why evaporative systems are so affordable is because they are not complicated mechanically and engineering-wise.  As you read above, the process and functions of an evaporative cooler is very simple, unlike traditional air conditioning units.  The reason why they are so energy efficient is because the work process is so simple.  Consumption is not measure in horsepower so that in itself explains everything.

Aside from the above advantages, evaporative cooler systems also have other more passive benefits.  These types of systems are actually endorsed by Go Green campaigners.  This is because they are environment-friendly.  This is because they do not use refrigerants like CFCs and HCFCs for the cooling process.  Evaporative systems are the best─ affordable, energy-saving and earth friendly.

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Evaporative coolers are the most affordable variants of cooling systems.  This is because their functions are very simple and they consume a lot less energy, especially when you compare them to traditional air conditioning systems.  They work by using cooled water.  This water is processed through a ventilating system, which in turn, distributes the cool air across the space.  Amidst being so affordable and energy-efficient, evaporative coolers are as effective as traditional air conditioning systems.

Types of Evaporative Coolers

The first type of an evaporative cooler is the old-school misting fan.  The misting fan is the most low-end evaporative cooling.  This simply directs bursts of water vapor into an industrial fan, which spreads it in the area.  This doesn’t work for everyone as it is a bit crass.  This is great, though, for open space like waiting sheds.

A more common type of cooler is a direct evaporative coolers.  This uses a water pad, which is bombarded with blowing air.  This type of evaporative cooler contributes a lot of humidity, so this is a good system for dry/arid areas.

A more advanced edition of the cooler is the indirect or two-stage cooler.  A two stage cooler uses a heat exchanger instead of direct air and water contact.  This contributes less humidity and can work well for indoor cooling.

Each of these evaporative systems is energy-efficient, effective and nature-friendly.  If you live in a dry and hot area, this would be the perfect system for your space.

First thing’s first; you would need to know the basics of evaporative coolers.  An evaporative cooler functions fairly simply.  It employs to main things in the cooling process: One is the ventilating fan; and the other is cooled water.  The ventilating fan is responsible for the distribution of cooled air across the living or working space.  This can be as plain as a simple fan, as elaborate as a full filtration system.  The cooled water is fully in charge of the whole cooling process.  Chilled water is the main thing that makes the system a cooling system.  When you combine the two together, you’ll get an efficient and effective cooling system.

Evaporative Coolers Benefits

Now, on to the benefits.  One difference between traditional air conditioning and evaporative coolers is its energy consumption.  An evaporative cooler only consumes ¼ of the energy a traditional air conditioner uses up.  Also, they are environment-friendly since they do not use refrigerants.  They are also a lot cheaper as they only cost at most $1000 (unit with labour installation.

Of course, nothing in this life is perfect.  Evaporative cooling also has its negative points.  First, they work differently for different situations.  For example, these systems are not advisable for humid area because they will make the air even more uncomfortable by adding to the humidity.  Second, not all establishments accommodate evaporative coolers.  Building codes sometimes disallow these for health purposes.

Evaporative coolers are great options for cooling your home.  But always remember that before getting a unit, assess everything about the space you want to cool.

An evaporative cooler is made to cool the air inside a house or a room through a combination of steady airflow and moisture in the air. This can decrease air temperature by 30 degrees Fahrenheit. It can be used as the only unit for cooling the house or as a complement to the cooling effects of existing air conditioners. This cooling unit works best in dry, low-humidity areas but not in very humid and rainy areas.

Evaporative Cooler Types

Evaporative coolers come in a variety of types, which are distinguished according to where they are installed. Window coolers lower the air temperature of a room or an entire house. Side discharge coolers, which are used to cool an entire house, are mounted on the side of the house in the attic area or on the roof. Down discharge units are also installed on the roof and distribute air downward to cool the entire house.

The pads used in an evaporative cooler serve as a filter trapping dust, allergens, and pollutants from the air. Two types of pads are commonly used for evaporative coolers: rigid media pads and fibre pads. Rigid media pads are longer lasting and easier to maintain than fibre pads. In contrast, fibre pads are cheaper and require more frequent replacement or maintenance. Portable evaporative coolers are designed to cool small rooms and can be moved around in the house. Lastly, mobile coolers are bigger than portable ones and are used in open spaces such as patios and garages.

As mentioned above, evaporative coolers are very affordable.  If you will compare the price range of normal air conditioning systems to evaporative air conditioning systems, the difference is great.  A typical centralized air conditioning system would cost around $2,500 with the installation labour.  An evaporative cooler would basically just cost you the unit itself, which is about $99 to $200.  They are basically plug-and-play and you can DIY the whole installation process.  There is practically no need for an HVAC contractor when installing it.

Evaporative Coolers and Nature

Aside from being affordable, evaporative systems are also energy efficient.  They use up about a quarter of the energy a typical air conditioning unit consumes.  They are also safe for the environment because the cooling process does not use refrigerants like Chlorofluorocarbons, or CFCs, and hydro-chlorofluorocarbons, or HCFCs.  Theses chemical compounds harm the Ozone layer and are great contributors to global warming.  Evaporative systems are so environment-friendly that they are endorsed by environmentalists Go Green campaign.

As you can see, there are many advantages an evaporative cooler brings.  Not only will you save money, you will also assist in protecting the earth.  Make things better for you and the earth by getting an evaporative cooler.